Light Yagami's interactions with other members of the Task Force in the anime Death Note are significant because they allow us to see the complex dynamics between Light and those who are trying to catch him. These interactions reveal Light's cunning and manipulative nature as he tries to outwit and deceive the Task Force members, especially L. It also shows how his relationships with the members evolve over time, shaping the course of the story and adding depth to his character development.